[Haskell-beginners] mayBe stuck

[aditya siram]

Normally yes, but here we are guaranteed to get a 'Just ...' value because
of the 'isNothing' guard.
-deech

On Thu, Aug 5, 2010 at 5:47 PM, Brent Yorgey <byorgey at seas.upenn.edu> wrote:

> On Thu, Aug 05, 2010 at 05:42:40PM -0500, aditya siram wrote:
> >
> > brS :: Maybe Int -> String -> String
> > brS i ss
> >    | isNothing i   = ss
> >    | otherwise     = (take (fromJust i) ss) ++ (brS newIndex newStr)
> >                        where
> >                            newIndex    = findIndex eqD newStr
> >                            newStr      = drop ((fromJust i) +1) ss
>
> /me makes deech write on the blackboard 100 times, "I will not use
> fromJust"
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